|
|
fasten 发表于 2017-5-19 08:35  X5 A' S6 x. f/ P# x6 H
Scope不能看出来区别？
9 m- H2 Y& q1 D我们的产品是一个3000W 的BBU 跟PSU 连接在一起，当PSU 通电的时候,PSU 给BBU 充电。当PSU 断电的时候，BBU 给PSU 提供DC，最终输出给系统供电。/ n: q6 ~) G4 ^& u
我们纠结到底是用UL1973 还是UL2054 。我觉得是用UL2054 但是客户说要做UL1973
6 f# p1 N; ^3 p5 }; x7 `. HUL1973( r2 S4 b/ [, }
1.1 These requirements cover electric energy storage systems as defined by this standard for use as" C1 B0 D( ~/ x& \
energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc.3 }, D/ |. T! I q
applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA& Q4 i7 f8 _6 m4 m7 h
70 or other applicable installation codes.1 Z8 J( G. @3 _( Y# e/ P F. i
1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard, f' \) x" X) w# q0 h R
for use in light electric rail (LER) applications and stationary rail applications such as rail substations
$ f$ j% h& x6 K9 K& j
/ e' s) Y) p( b0 Q1 LUL2054
4 A, P/ ]9 P5 F/ o5 k6 Z1.1 These requirements cover portable primary (nonrechargeable) and secondary (rechargeable)
7 N! F. }+ I7 H5 Tbatteries for use as power sources in products. These batteries consist of either a single electrochemical
5 y6 s6 J! ?) |cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical
/ a) b. A: @. I4 oenergy by chemical reaction.: e/ x, o- X$ H2 o9 g
( ]5 W$ X" v: d4 Q' ]( D4 E
|
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2017-5-18 17:45
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
发表于 2021-8-7 12:41
222222222222222
楼主
发表于 2017-5-19 08:35
